#!/bin/bash
function s1_hello(){
echo "hello, world!";
}
function s2_tell_who_i_am(){
whoami;
}
function s3_which_distro_do_i_use(){
if [[ -f /etc/os-release ]]; then
source /etc/os-release
echo "NAME=\"$NAME\""
elif [[ -f /etc/lsb-release ]]; then
/etc/lsb-release
echo "NAME=\"$DISTRIB_ID\""
else
cat /etc/issue | head -n 1| sed 's/\\n//g' | sed 's/\\r//g' | sed 's/^\\s*//g'
fi
}
function s4_view_my_cpu_arch(){
uname -m;
}
function s5_show_first_scsi_disk_size(){
lsblk -1 | \grep disk | \grep '^sda' | awk '/^sda/ {sub(/6$/, "", $4); print $4}'
}
function s6_show_main_memory_size_in_megabytes(){
free -m | grep "Mem:" | awk '{print $2}'
}
